The OWASP ZAP core project
SoapUI is a free and open source cross-platform functional testing
Now continued as OculiX — see oculix.org
Gateway service providing dynamic routing, monitoring and more
The Open Source Test Automation Platform
Java GUI-Less browser, supporting JavaScript, to run against web pages
Enterprise integration testing framework
A web application for testing webservices
Test Automation framework intended for coarse-grained testing
The Interactive Exernal Accessor Tool for develop, test and support.
A C++ library for AVR and NodeMCU
Easy to set up bug tracking with Java
Load testing tool for analyzing and measuring performance of services
Benchmarking tool
Software Unit Tests (Language Independent Approach)
A JDBC proxy driver for the recording and replay of database access
Software Monitoring Framework
Java-based test automation framework (Maven + TestNG)
Test Automation Management Tool
Marathon supports testing of Java/Swing and Java/Fx applications.
Axway Automation Testing System (ATS) - Ready to use examples
A tool for automated testing REST API, generating exquisite testing re
Mock service for SOAP/REST webservices to support automated tests.
Multiplatform data-driven test automation execution services